My handwritten pages tend to come out at a pretty constant 250 words/side, which was always handy for gauging the progress of school essays (a bit like Hogwarts measuring them by the inch :-D)

Comes in very handy for estimating fanfic progress without having to type anything up, as well; if I aim for six to eight pages I can get a fairly consistent 3-4000 words per chapter.

(busy tag-browsing... you might want to consolidate a few of them, e.g. ccs/card captor sakura/cardcaptor sakura...)